.background-decoration{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:var(--z-background);overflow:hidden;}.decoration-circle{position:absolute;border-radius:var(--radius-full);background:rgba(255,255,255,0.1);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);animation:float 6s ease-in-out infinite;}.circle-1{width:300px;height:300px;top:-150px;right:-150px;animation-delay:0s;}.circle-2{width:200px;height:200px;bottom:-100px;left:-100px;animation-delay:2s;}.circle-3{width:150px;height:150px;top:50%;left:10%;animation-delay:4s;}@keyframes float{0%,100%{transform:translateY(0px) rotate(0deg);}50%{transform:translateY(-20px) rotate(180deg);}}.floating-elements{position:absolute;width:100%;height:100%;}.floating-book{position:absolute;font-size:2rem;opacity:0.3;animation:floatBook 8s ease-in-out infinite;}.book-1{top:20%;left:15%;animation-delay:0s;}.book-2{top:60%;right:20%;animation-delay:2s;}.book-3{bottom:30%;left:80%;animation-delay:4s;}.book-4{top:80%;left:40%;animation-delay:6s;}@keyframes floatBook{0%,100%{transform:translateY(0px) rotate(0deg);opacity:0.3;}50%{transform:translateY(-30px) rotate(10deg);opacity:0.6;}}@keyframes slideInLeft{from{opacity:0;transform:translateX(-50px);}to{opacity:1;transform:translateX(0);}}@keyframes slideInRight{from{opacity:0;transform:translateX(50px);}to{opacity:1;transform:translateX(0);}}@keyframes fadeInDown{from{opacity:0;transform:translateY(-15px);}to{opacity:1;transform:translateY(0);}}@keyframes fadeInUp{from{opacity:0;transform:translateY(15px);}to{opacity:0.8;transform:translateY(0);}}@keyframes fadeInSlideUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}@keyframes expandWidth{from{width:0;opacity:0;}to{width:60px;opacity:1;}}@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}@keyframes slideUp{from{opacity:0;transform:translateY(30px);}to{opacity:1;transform:translateY(0);}}@keyframes spin{0%{transform:rotate(0deg);}100%{transform:rotate(360deg);}}